发明名称 |
PICKUP ARMS |
摘要 |
This invention relates to an improved phonograph pickup arm assembly affording a wide range of adjustments. In particular, the arm includes means for adjusting playing weight in which variation of playing weight is accompanied by automatic adjustment of a force correcting the side thrust of skating force at the stylus. The correcting force is produced by inclination of the pivotal axis of the arm by an angular amount about which produces an appropriate horizontally resolved part of the vertical force of the stylus. The pickup arm can be unplugged towards its inward end.
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申请公布号 |
US3645541(A) |
申请公布日期 |
1972.02.29 |
申请号 |
USD3645541 |
申请日期 |
1969.03.17 |
申请人 |
ALASTAIR JOHN ROBERTSON-AIKMAN -STOKES STEYNING |
发明人 |
ALASTAIR JOHN ROBERTSON-AIKMAN -STOKES STEYNING |
分类号 |
G11B3/14;G11B3/20;(IPC1-7):G11B3/10 |
主分类号 |
G11B3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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